Best OS for an old PE2550?

[J. Epperson]

On Sun, July 15, 2007 04:15, Brian Hughes wrote:
[snip]
> But about the PE2550s, we'd like to use one of these for a light-duty
> webserver, the other for a training test-bed for networking and such
> for students.  We'd like to run the usual for the webserver, PHP,
> Apache, MySQL, etc.
>
> My question is what is the best and latest OS that will run on these
> units?
>
>  From looking at the docs at Dell and searching through these lists
> an older version of Red Hat Linux would be good but I'm not sure how
> new.  Should I consider the Enterprise server versions or stick with
> the older RH Linux 9?

I have a rack of these one-by-one going out of production as legacy
servers.  I installed Centos EL5 on one week before last without issue,
including running SELinux in enforcing mode.  All looks fine so far.